Home / 389,216.34-537,170.54-228,135.69

Finding the Fourth Proportional to 389,216.34, 537,170.54 and 228,135.69

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Solution

The fourth proportional to 389,216.34, 537,170.54 and 228,135.69 is: 314,857.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,216.34 : 537,170.54 = 228,135.69 : x
  2. Step 2: Convert to fraction form
    389,216.34/537,170.54 = 228,135.69/x
  3. Step 3: Cross multiply
    389,216.34x = 537,170.54 × 228,135.69
  4. Step 4: Simplify right side
    389,216.34x = 122,547,770,649.89
  5. Step 5: Solve for x
    x = 122,547,770,649.89/389,216.34
  6. Step 6: Final answer
    x = 314,857.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.